07/01/18

math question
Suppose a group of consumers spends 30 percent of its disposable income on food, 20 percent on clothing, and 50 percent on rent. If over the course of a year the price of food rose 10 percent, the... more
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07/01/18

if x varies directly as y and when x=3, y=8, find y when x=21
<nothing h3r3>
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07/01/18

The following set of ordered pairs is an example of inverse variation,find the constant product between the variables.
(2,6),(3,4),(-1,-12),(-6,-2)
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07/01/18

5 times the number is greater than 3 times the number by 4. Find the number
Hi.   Can anyone help me with my math homework, it is my summer holiday homework and it is really hard. I'm in seventh grade.
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07/01/18

has a diameter with endpoints (3,1) and (-7,6)
Find the standard equation of the circle
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07/01/18

What is the difference between [2, infinity) and (1, infinity)?
Don’t the both of them mean the same? i.e from 2 to infinity? There was this one mcq which had both of these options. So how do yoy differentiate between the two?  
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06/30/18

Discriminant
find exact values of p if px^2 - 2x + 3p = 0 is a negative definiteI have the process to get the answer-p < - 1/√3
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06/30/18

Math Percentage question. How do I get to it?
Let's say have 100.00. let's say the price is 115.00 now. (115/110)-1 = .15 Therefore it is a 15% rate increase.   However, if i do 115 x .85  (100-15%)= its 97.75. why isnt it $100 given the... more
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06/30/18

area,volume, peirmeter
A storage container at the arena is 3 metres wide, 6 metres long and 4 metres high. How many 50 cm by 50 cm by 50 cm boxes could you fit into the storage container?
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06/30/18

area,perimeter,volume
area,perimeter,volume The rectangular backboard of a basketball court needs to be assembled. Its area is given as 18,900 cm2 and the width as 1.8 m. What is the backboard’s length in meters? m
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06/30/18

Set builder notation translation and cardinality
Given the following:S = {(A, B) | A ⊆ {1, 2, . . . , n}, B ⊆ {1, 2, . . . , n}, |A ∩ B| ≥ 1}, how can I translate this in terms of english and how would one go about finding the cardinality of the... more
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06/30/18

A new side walk will be 6 feet wide 200 feet long and filled to a depth of 6 inches with concrete. How many cubic yards of concrete are needed
What's the answer
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06/30/18

How much gas would i need
My car holds 15 gallons of gas. It gets on average 17 miles per gallon.  How many gallons would i need to travel 400 miles
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06/30/18

Write the equation in the form y = mx + b.
6x + y = 5
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06/30/18

If the line x+2by+7=0 is a diameter of the circle x^2+y^2-4x+8y-13=0, then b=?
Options:  A- 3/9  B- 8/9 C- -9 D- 9/8
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06/30/18

Is whole number is set under multiplication?yes or no
Whole numbers
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06/30/18

Prove that n^2 +7n +15 is greater than n+3 is true for all values of n
I tried minus the right hand side and simplify, but that did not work. I tried simply the left hand side first and even that didint work. Please help! Thanks
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06/30/18

i need the answer for it
in a school, 48 students study physics, mathematics, or chemistry. out of these 35 study physics, 8 study mathematics and  12 study physics and chemistry. 5 study physics and mathematics. all those... more
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06/30/18

Simplify √a^2 - √b^2 + a ÷ √a^2 + √b^2 +a
This is simplication of class 9 th maths ch 1
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06/29/18

which angle has the largest angle measure, and what is its angle degree
If triangle abc has angle measures angle a=3x degrees, angle b=x+5, and angle c= x-15
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06/29/18

The function T(x) = .15(x-10850)+870
The function represents the federal income tax bill T of a single person whose adjusted gross income in 2011 was x dollars for income between 10850 and 37500 inclusive. What was the single filer's... more
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06/29/18

Is A=s^2 is a area formula that show a joint variation
Is A=s^2, A=π^2, A=l•w formula that show joint variation?
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06/29/18

Let g(x)=x^3 and F(x)=1/(x-4). Simplify or evaluate the function F(g(y)).
Let g(x)=x^3 and F(x)=1/(x-4). Simplify or evaluate the function F(g(y)). F(g(y))=
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06/29/18

Your base salary will be $83,000 with an additional 85$/shift. You work 7 shifts per 2 weeks. what is year annual salary?
Your base salary will be $83000 with an additional 85$/shift. You work 7 shifts per 2 weeks. what is year annual salary?
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06/29/18

math help! Composition and functions (Algebra 2)
A clothing store advertises that it is having a 25% off sale. For one day only, the store advertises and additional savings of 10%. Use composition of functions to find the total percent discount.... more
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